I also get this message in the log file when trying to login (dovecot-auth), uid 0: exited on signal 6 (core dumped)
doing a backtrace on the core i get this :
#0 0x1831e1d7 in kill () from /lib/libc.so.5 #1 0x1831327e in raise () from /lib/libc.so.5 #2 0x18385627 in abort () from /lib/libc.so.5 #3 0x0805f1eb in i_internal_panic_handler (fmt=0x1 <Address 0x1 out of bounds>, args=0xbfbfeb44 "0Ì\006\bn") at failures.c:375 #4 0x0805ed9b in i_panic (format=0x806926c "file %s: line %d (%s): assertion failed: (%s)") at failures.c:173 #5 0x08061acc in io_loop_handle_remove (ioloop=0x1, io=0x0) at ioloop-poll.c:110 #6 0x080612b7 in io_remove (io=0x8070560) at ioloop.c:67 #7 0x08053b7a in auth_worker_destroy (conn=0x80703c0) at auth-worker-server.c:133 #8 0x0805409e in auth_worker_server_deinit () at auth-worker-server.c:377 #9 0x080550bb in main (argc=1, argv=0x807b080) at main.c:267
I think this may be related somehow to the problem reported in my previous email.
I saw that others reported this problem with dovecot hanging at login ... Did anyone managed to fix this ?